Matematika Sekolah Menengah Atas 5x + 2y=87 3x +4y=69​

philiprennerulv – April 11, 2023

5x + 2y=87 3x +4y=69​

Jawaban:

5x + 2y =87

5x = 87 - (2y)

5x = -2y + 87

x = (-2y + 87) ÷ 5

x = (-2y + 87) × 1/5

x = -2y × 1/5 + 87 × 1/5

x = -2/5y + 87 × 1/5

x = -2/5 + 87/5

x = -0,4y + 17,4

x = 17y

3x + 4y = 69

3x = 69 - (4y)

3x = -4y + 69

x = (-4y + 69) ÷ 3

x = -4y × 1/3 + 49 × 1/3

x = -4/3y + 49 × 1/3

x = -4/3 + 23

x = -1,3y + 23

x = 24,3y

Penjelasan dengan langkah-langkah:

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